Home / 1,999,828.80-3,000,180.60-989,434.80

Finding the Fourth Proportional to 1,999,828.80, 3,000,180.60 and 989,434.80

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Solution

The fourth proportional to 1,999,828.80, 3,000,180.60 and 989,434.80 is: 1,484,368.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,999,828.80 : 3,000,180.60 = 989,434.80 : x
  2. Step 2: Convert to fraction form
    1,999,828.80/3,000,180.60 = 989,434.80/x
  3. Step 3: Cross multiply
    1,999,828.80x = 3,000,180.60 × 989,434.80
  4. Step 4: Simplify right side
    1,999,828.80x = 2,968,483,091,924.88
  5. Step 5: Solve for x
    x = 2,968,483,091,924.88/1,999,828.80
  6. Step 6: Final answer
    x = 1,484,368.61

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.